On April 11, Col. Dorrian told Grasswire US military forces are on heightened alert in Syria after cruise missile strikes against Shayrat airbase, and Islamic State militants attempted to infiltrate At Tanf garrison in the south.
Text in the liveblog below is not verbatim. The full transcript is here.
Dorrian: SDF and SAC continues isolating Raqqa. They have repelled a significant number if IS attacks.